Amal and George Clooney have a busy few weeks ahead of them, as they will become parents to twins sometime next month. Though June will be all about the next generation of Clooneys, May belongs to their dad, who turned 56 on Saturday. Thanks to Amal’s surprise birthday-party-planning skills, there was plenty of fanfare—Casamigos Tequila cake included—to go along with her husband’s birthday.

When he arrived at the couple’s London home on Saturday, George received a bit of a shock, per E! News. He was greeted by Rande Gerber atop his lawnmower—while Cindy Crawford trimmed fresh flowers in a nearby garden. They were joined by a group of close friends all there to surprise George.

E! reports that the whole thing was set up by a crafty Amal, who was careful not to miss any birthdays at the party. Gerber, who turned 55 on April 27, got to share in the celebration with his business partner. The cake, which followed the theme of Casamigos Tequila (George’s company with Gerber) featured George and Rande cake-toppers. ”Happy Birthday Amigos,” it read.

All important productions in the Clooney household seem to fall safely in the hands of Amal—as indicated by Matt Damon’s March interview with Entertainment Tonight about the couple’s soon-to-be-born twins:

“He’s going to get prepared,” Damon said. “He better figure it out, ’cause they’re on the way. But he’ll be great. He’ll be a mess, but [Amal] will take care of everything.”

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January 9, 2017

The Clooneys attended a screening of the Clooney Foundation for Justice, in London. She wore a Dolce & Gabbana dress.

Photo: By David M. Benett/Getty Images.

February 24, 2017

Amal wore Atelier Versace to accompany George to the 42nd César Awards. There he was deemed “the most charismatic actor of his generation,” and she told reporters (in French), “It is a great honor for us to be here. It’s the first time we’re in Paris together so it’s a bit of a romantic weekend for us.”

Photo: By Rindoff/Charriau/Getty Images.

February 25, 2017

Amal leaving L’Hôtel in Paris with George in a 60s jacket and dress.

Photo: By Mehdi Taamallah/NurPhoto/Getty Images.

February 26, 2017

Clooney headed out of the couple’s Parisian hotel again in head-to-toe Valentino.

Photo: By By Mehdi Taamallah/Nurphoto/Getty Images.

March 9, 2017

Clooney addressed the U.N. Security Council on behalf of her client Nadia Murad in Bottenga Veneta.

Photo: By Alessio Botticelli/GC Images.

January 9, 2017

The Clooneys attended a screening of the Clooney Foundation for Justice, in London. She wore a Dolce & Gabbana dress.

By David M. Benett/Getty Images.

February 24, 2017

Amal wore Atelier Versace to accompany George to the 42nd César Awards. There he was deemed “the most charismatic actor of his generation,” and she told reporters (in French), “It is a great honor for us to be here. It’s the first time we’re in Paris together so it’s a bit of a romantic weekend for us.”

By Rindoff/Charriau/Getty Images.

February 25, 2017

Amal leaving L’Hôtel in Paris with George in a 60s jacket and dress.

By Mehdi Taamallah/NurPhoto/Getty Images.

February 26, 2017

Clooney headed out of the couple’s Parisian hotel again in head-to-toe Valentino.

By By Mehdi Taamallah/Nurphoto/Getty Images.

March 9, 2017

Clooney addressed the U.N. Security Council on behalf of her client Nadia Murad in Bottenga Veneta.